Daniel h



D. H. MAHONEY.

DITCHING MACHINE. APPLICATION FILED FEBZ 10, 1915.

irww DANIEL H. MAI-IONEY, OF VINCENNES, INDIANA, ASSIGNOR TO MAHONEYRAILROAD DITGHING MACHINE 00., F VINCENNES, INDIANA.

DITCHING-MACHINE.

Specification-of Letters Patent.

Patented Aug. 8, 1916.

Application filed February 10, 1915. Serial No. 7,348.

- a citizen of the United States, residing at Vincennes, in the countyof Knox and State of Indiana, have invented certain new and usefulImprovements in Ditching-Machines,

of which the following is a specification.

, This invention appertains to certain new and useful improvements inexcavatorsor ditching machines, and in the construction of a machinemade to accord with my invention there is provided a frame thatissupported upon wheels, said frame carrying a motor as well as acapstan, of the drum and clutch type. The frame also carries at itsforward portion a mast with which is associated a boom and a pivotedmember, the boom being adapted to be swung to position for excavatingand to one side of the frame to deposit the excavated material to oneside of the ditch. The parts constituting my 111- vention are soorganized that the main wheel supported frame is moved forward as theexcavating or ditching proceeds, the scoop being filled by movementtoward the wheeled frame, and when filled the scoop is raised and isswung to one side of the ditch where it is turned to discharge itscontents.

The accompanying drawing shows a side elevation of my invention embodiedin a preferred form.

The main frame of the ditching machine or excavatorcomprises-longitudinal beams 1, and transverse sill pieces 2 and 3, therear sill 2 having attached thereto an axle 4 upon which is mounted therear wheels 5, 5. The axle 4 and the sill 2 are preferably rigidlyconnected one to the other and the wheels 5 are of greater diameter thanthe front wheels 6 which are on an axle attached to a bolster, so thatthe front wheels may be turned under the beams 1. In practice thebolster and axle for the front wheels may be connected with suitablesteering mechanism and the rear wheels 5 can be driven by an enginemounted on the main frame.

The longitudinal beams 1 are connectedby the transverse sill pieces 2and 3 and by intermediate cross pieces 7, which carry the frame of acapstan or winch, having an engine and boiler, of a type manufactured bythe Lidgerwood Manufacturing Company, and patented July 3, 1900, No.652,798 and September 14,1909,No. 933,825.

The mast 8 comprises two upwardly converging beams the lower endsthereof being secured to the sill 2 and to the longitudinal beams 1, andfrom the upper end of the mast extend divergin braces the lower endsthereof being secure to the front ends of the beams 1. The two beams ofthe mast are connected at intervals by cross pieces or braces 9, 10, 11,12 and at the top by a fixture 13 having an upward projecting pin 14 toreceive a loop to which is attached a swinging stay-bar 15 that extendsand is secured to the upper end of an arm 16. The upper cross pieces 9and 10 of the mast maintain centrally disposed sheaves 17 and 18, guiderollers 19 and 20 being mountedupon suitable supports. The upper face ofthe sill 2 has secured thereto a turntable 22, having a rim withflanges, between which flanges is passed a rope that is suitably guidedfor engagement with a drum 60. The turntable is also provided withapertured lugs 26 which are fixedly attached to the turntable and towhich the beam 27 is pivoted. The member 16 has guide pulleys 45 and 46for a rope or flexible connection 44, that is used to exert a draft uponthe scoopbeam 40 on both sides of its pivotal point of connection withthe boom 27.

The boom 27 comprises two side pieces of metal, preferably I-bars whichconverge from the lugs 26 to which they are pivoted to their outer ends,where they are connected by a loop 30, and at intermediate points theside bars of the boom are connected by blocks or stays. To the connectedends of the I-bars there is attached a loop 30 which carries a sheave33, over which is passed a rope 44, said rope extending from a loopattached to the beam to the roller 44. The

rope 44 which is attached to the scoop-beam,

nection with the beam 27. A flexible con nection 34 is used for dumpingthe scoop is attached tothe beam 27 at 35, and is passed about a sheave36 attached to the scoop, and from thence over a sheave 36' carried bythe boom 27 and then over a I guide roller, so that by drawing upon theare secured straps 42 which carry a sheave 43, about which passes a rope44 which is used not only for dumping the scoop 34 such rope also beingused for raising and lowering the boom. The lower end of the scoop--beam 40 carries arms 47 which are pivoted at their lower ends to thesides of the scoop or dipper 38, and a bail 48 is also connected to thesides of the scoop and carries a sheave 49 with which engages a rope 50attached to the boom and after engaging the sheave 49 extends over aguideroller 51 carried by the boom and from thence to a sheave 18 on themast and thence to one, of the drums of the capstan or winch. When theboom is lowered the rope 50 is used to move the scoop or dipper forwardto fill the same.

The ditching machine hereinbefore described is moved by power carried bythe wheeled frame, and is advanced as the ditching proceeds, and thesoil excavated may be placedeither on one or both sides of the ditch orcan be deposited in carts or wagons located to one side of the ditch.The different drums of the capstan or winch are readily operated in thedesired directions by shifting properlevers, and when the steamgenerated in the boiler is not used to operate the drums of the capstano-r winch it may be used to drive the engine which moves the wheeledframe. The steering of the wheeled frame, and the moving of the sameeither backward or forward is accomplished in the usual manner.

In operation the wheeled frame is moved to the place where it is desiredto dig a ditch, the boom is lowered and the scoop is positioned so thatthe teeth will engage with the surface of the ground. The scoop is movedforward by draft upon the rope 50, which with the other connections willcause the scoop to be moved in the segment of a circle and when filledthe boom'may be raised and swung to one side and when in position fordumping the scoop is dumped by draft exerted upon the flexibleconnection 34.

In a ditching or excavating machine of the class described the scoop isconnected'to a scoop beam which is pivoted to the boom, such boom beingpivoted at one end to a turn table; in advance of the mast, and betweenthe mast and the boom is a member which carries guide pulleys or sheavesover which the flexible connectlons pass to sheaves on the mast fromwhich the flexible connections pass to drums on the frame of thecarriage. The parts are so organized that to fill the scoop or bucket itis moved toward the carriage, the scoop-beam being pivoted tothe boom isheld against upward movement, by the weight of said boom to which isadded the weight of the scoop and the scoop-beam. The boom is mounted tobe raised and lowered as the excavating proceeds, and is swung to oneside to dump the earth alongside of the ditch, and after the ditch hasbeendug to the desired depth the carriage is moved forward for furtherexcavation.

I claim 1. In a ditching machine, a wheel supported carriage, drumsmounted on the carriage, actuating means for the drums, a mast providedwith sheaves, a boom pivoted at one end to a turn table and associatedwith the carriage in such manner that the end of the boom farthest fromits pivot may be moved both upward and sidewise, means for raising,lowering and laterally moving the boom, a scoop-beam pivoted to theboom, a pulley associated with the upper end of the scoop-beam, a pulleyassociated with the lower end of the scoop-beam, flexible connectionsfor engagement -with the pulleys attached to the scoop -beam and withsheaves on the mast and a flexible connection that engages with a pulleyattached to the rear portion of the scoop for turning the scoop upon thescoop-beam.

2. In a ditching machine, a wheel sup-.

ported carriage, a capstan mounted on the wheel supported carriage andprovided with a plurality of drums, means for actuating the drums, amast having attached thereto pulleys, a boom-associated with the wheelsupported carriage to swing vertically and laterally, flexibleconnections for raising; lowering and swinging the boom, a scoopbeampivoted to the boom and provided with i a pulley that is attached to theend thereof that extends above the'boom, a scoop'pivoted to thescoop-beam, means engaging with a pulley attached to the lower portionof the scoop-beam for moving the scoop toward the Wheel supportedcarriage, and a flexible connection which engages the boom, a pulley atthe rear portion of the scoop and a pulley on the boom to provide Lneansfor turning the scoop upon the scoopearn.

In testimony whereof I affix my signature Witnesses:

EUGENE W. JoHNsoN, JAS. H. BLACKWOOD.

